Hi Folks,

I'm in a bit of a pickle.. After a nice 3 hour drive home on the highway I got off my exit and stopped at light. At idle I start hearing some funky belt noises. I go through the light and start heading the 3 miles home.

The squeaking gets really loud. My "battery charge" CEL comes on, no power steering, and my temp starts to jump up.

I pull over and I can see that the belt is not moving while the engine is running.. NOT GOOD...

Since Im only a mile from the house I slowly keep going keeping the temp under 100C. For no reason I could tell the squeaking stopped and all the accessories came back temp went back to 80 and Power steering came back.

I got it home popped the hood and can see and hear the belt flapping a bit as if it was loose. I turned it off and see the problem. The tensioner pulley (or bearing) had frozen and somehow moved forward toward the RAD blades. The belt jumped over it on to the shaft of the pulley (since now there was somewhere for it to go. That was the reason I made it home but the belt is shot (but still together).

Now the big question.

How do I replace this pulley? Where to get it before MON

Do I have to pull the RAD to install this piece?

Once I get the part how do I release the tensioner to put the belt back on?

I may have to go to MB to get the part today so if yall know the part number shoot it over so I can go get it.

Here is a shot of my pulley.

All help is appreciated!!

thanks Chris

give a call on my Cell if you like 904-316-8513

Attached Thumbnails

     

only way to maybe get a replacement pully on that short of notice is the dealership. or try your luck at the junk yard.

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

Yeah,

I kinda figured that... How do I get the fan and shroud off so I can get to the pulley?

thanks Chris

I found this link which I hope is very helpful.

R&R of Viscous Coupled Fan, Serpentine Belt Replacement W210 E300D

Ill replace the fan clutch as well since I know it is bad...

If there are any other helpful hints not included in this let me know.

thanks Chris

1995 E300D belt tensioner
1995 E300D belt tensioner




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1985 300SD
1983 300D
2003 Volvo V70

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Good talking with you on the phone.

FYI other members:
This is his daily driver, and he needs it back on the road asap.

Due to the urgent need for repair on this (MLK) holiday weekend, I suggested contacting.

Continental Imports
1219 S. Main St.
Gainesville, FL 32601 USA
(352) 377-6604
http://www.continentalimports.com

I have a 96e300d, and according to the shop manual, it states that you have to remove the fan only. You may be able to do the job without removing the fan, but I have never made that repair, so I can not tell you from experience. According to the diagram, the pulley rides on a center pin that is screwed into the crankcase, and it looks like the pulley is held in place by a bolt that screws into that center pin. Both of these bolts have covers over them. As for releasing the tensioner, your photo shows the upper radiator hose, and right next to it is a bolt that goes through that black plastic piece. Remove the nut on the end of that bolt, and push the bolt towards the rear so that it clears the plastic piece. This will allow that piece to pivot. There is a hole in that plastic piece where you can use a small extension bar to apply leverage so that you can replace the belt, and then reposition the plastic piece so that it realigns with the bolt you pushed to the rear. Push the bolt trough the hole, and reattach the nut. Good luck

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96 E300d

If the tensioner is the same as the 603, you might have a bad tensioner assembly, not just the pulley. For it to be at that angle it seems that either the arm is bent, bearing is shot, or the front cover/chain cover is bent/broken.

Check everything down there before ordering parts.

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Gone to the dark side

- Jeff

The FSM cautions against laying the fan clutch flat, best to stand the fan up until re-installation.

__________________

Gone to the dark side

- Jeff

Thanks... Ill keep that in mind when I get the new one.. The old one (this one) is going in the trash.

How can they possibly expect that the fan clutch would be kept vertical? What about when they are shipped? It seems unlikely they could design it in such a way that it would be damaged by laying it flat. I am not saying it doesn't say that I am just saying it's possible there was something lost in translation there.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

Mine was shipped upright in the box, I don't know why it is supposed to be, just what I read in the FSM. I am now very careful to park my cars where the fan is not laying flat.

__________________

Gone to the dark side

- Jeff

So this was a JOKE? I think the OP took you seriously.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

Just the last part.

I read it in the FSM after I ordered a new one, was happily surprised to see that Rusty's people had packed it in the box standing upright, not laying flat.

__________________

Gone to the dark side

- Jeff

Regardless of how it is packed in the box, what guarantee is there that UPS will keep it oriented the way it is supposed to be? Like I said, it seems very unlikely that laying it flat does anything to it...they really can't expect that it will always be kept vertical.

My guess is that the packing was done purely coincidentally to arrive standing up. Worldpac people (the company that fulfills most of Rusty's orders) don't know what parts are supposed to stand up or lay down when they throw them into the box

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz